The Stegosaurus is known for the scales along its back, but did you also know the dinosaur had a brain the size of a ping pong ball? Eating both meat and plants, the Stegosaurus roamed the Earth during the late Jurassic period at 30 feet (9.1 m) in length. This volume contains a complete guide for anything a reader might want to know about the dinosaur, including fossils, sketches, fact boxes, and diagrams. Colorful graphics guide readers on their journey to learning about such a fascinating, prickly creature!